. Electric railway journal . PASSENGER AISLE Interior Arrangement op Heating Car At one end is located a water circulating pump withits driving motor, the whole being placed over a rect-angular water supply tank. The high-tension room contains a 4-kva. transformerfor the pump driving motor, high-tension fuses, cur-rent and voltage transformers, disconnecting switchesand the main oil switch. This equipment is well pro-tected by a wire mesh partition, having a small passagedoor which is interlocked with the main oil switch drivein such a manner that the operator cannot enter thehigh-tension room
. Electric railway journal . PASSENGER AISLE Interior Arrangement op Heating Car At one end is located a water circulating pump withits driving motor, the whole being placed over a rect-angular water supply tank. The high-tension room contains a 4-kva. transformerfor the pump driving motor, high-tension fuses, cur-rent and voltage transformers, disconnecting switchesand the main oil switch. This equipment is well pro-tected by a wire mesh partition, having a small passagedoor which is interlocked with the main oil switch drivein such a manner that the operator cannot enter thehigh-tension room unless the oil switch is opened. The boiler, which is heavily insulated against heatlosses, has two steam-tight current-inlet insulators, ofwhich each connects with a system of electrodes ofspecial design, developed by the engineers of BrownBoveri & Company. These electrodes are easily adjust-able from the operators room while under tension,thus permitting of varying the load between 300 and. Experimental Electric Steam Heating Car in the Middle of a Train August 6, 1921 Electric Railway Journal 207 1,200 kw. according to requirements. As a rule one ofthe electrodes is quite sufficient for heating underaverage operating conditions, so that the second elec-trode constitutes a reserve to be used only while start-ing to heat up a train or during most severe to Swiss practice, we calculate for heatingpurposes with an expenditure of energy of from watts per cubic foot, or figuring with an averagepassenger coach of 4,000 each coach would requirefrom 23 to 34 kw., including all losses. A single elec-trode could therefore supply sufficient steam to heata ten-car passenger train under average heating wagon is placed as near as possible to thecenter of the train in order to reduce steam transmis-sion losses to a minimum. While it is by no means impossible or even imprac-ticable to provide for an entirely automatic operationof this equi
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